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It would take a vehicle nearly five hours to travel just 117 miles, which is the equivalent flight time of a plane travelling from London to Turkey or Greece.

The ten slowest motorways in Britain are as follows:

Ten slowest motorways in Britain

Satrak Vehicle Tracking

Dan Walton, MD of Satrak Vehicle Tracking, said: “It’s little surprise to find that the M25 is in fact the slowest motorway. We undertake work throughout the country and usually find the M25 to be the most cumbersome, and our data provides evidence for that.

“I’ve heard of tailbacks stretching 12 miles in my time there so it’s of little surprise to me. It’s nice to see that people are taking care in many of our cities however, as these places are often busy and above all are not environments for speeding.”